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Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 32mm Stainless Race Master Valves

SKU: MAN11155-8

Valves

MAN Race Master Valves...

Manley 00-03 Subaru WRX (EJ20) / 04 STi Exhaust 32mm Stainless Race Master Valves

SKU: MAN11155-8

Valves

MAN Race Master Valves...

A$408.77
IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Manley Race Series valves are meticulously engineered to meet the rigorous demands of bracket, drag, and oval track racers and are the ultimate choice for engines operating under 8000 RPM.

Part Type

Engine Exhaust Valve

Data: v4.2 - Upd: 2026-10-13 19:35:57

Features

  • Chrome Stems and Hard Tips: Chrome stems and hard tips are incorporated for enhanced longevity and wear resistance.
  • Recommended for Alcohol Engines: These valves are the recommended choice for exhaust valves in alcohol engines, ensuring reliable performance even in demanding conditions.
  • Stainless Steel Construction: Both exhaust (XH-426) and intake (NK-842) valves are constructed from high-quality stainless steel for unparalleled durability.
  • Swirl Polished and Fully Machined: The valves feature swirl polished under head areas and fully machined combustion faces to optimize airflow and combustion efficiency.
  • Variety of Shapes: Choose between Race Master (Straight Stem) and Race Flo shapes to suit your racing engine's specific requirements.

Specifications

Product Attributes - Brand
Manley
Product Attributes - Manufacturer's Part Number
11155-8
Product Attributes - Part Type
Valves
Product Attributes - Product Line
Manley Race Master Valves
Product Attributes - UPC
807298044637
Product Attributes - Valve Position
Exhaust
Product Attributes - Exhaust Valve Head Diameter (in.)
1.260 in.
Product Attributes - Exhaust Valve Head Diameter (mm)
32.000mm
Product Attributes - Exhaust Valve Stem Diameter (in.)
0.235 in.
Product Attributes - Exhaust Valve Stem Diameter (mm)
5.97mm
Product Attributes - Exhaust Overall Valve Length (in.)
4.124 in.
Product Attributes - Exhaust Overall Valve Length (mm)
104.750mm
Product Attributes - Undercut Stem
Yes
Product Attributes - Swirl-Polished
Yes
Product Attributes - Valve Tip Length (in.)
0.138 in.
Product Attributes - Valve Tip Length (mm)
3.500mm
Product Attributes - Valve Material
XH-426 stainless steel
Product Attributes - Lock Groove Quantity
1-groove
Product Attributes - Lock Groove Style
Conventional
Product Attributes - Valve Head Style
20 degree dish
Product Attributes - Valve Seat Width (in.)
0.080 in.
Product Attributes - Quantity
Sold as a set of 8.

Reference Information

Brand Name/s Manley Performance
StreetFX SKU man11155-8
SFX Item ID 4061361
Supplier Item Code 4061361
Manufacturer SKU 11155-8
Manufacturer UPC 807298044637
Alternative References (EJ20), 32mm

Compatibility

Application Data
  • Valve FitmentSearch by engine
    MakeSUBARU
    Beginning Year2002
    Ending Year2005
    Engine TypeH4
    Engine Size2.0L/1994cc
    Engine FamilySubaru 4-cylinder
    Valve Installed LengthStock
    Cylinder Head Style (application)Stock configuration
  • Valve FitmentSearch by engine
    MakeSUBARU
    Beginning Year2002
    Ending Year2005
    Engine TypeH4
    Engine Size2.5L/2458cc
    Engine FamilySubaru 4-cylinder
    Valve Installed LengthStock
    Cylinder Head Style (application)Stock configuration

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